Year | Anomaly | Coordinates | Swarm region (number of events) |
1998 | Jul-Aug | −27.64N, −37.47S, −66.25E, −74.85W | Valparaiso-Concepcion (Chile)-324 |
2001 | Apr | −18.94N, −40.05S, −60.30E, −74.36W | Chile coast-294 |
2001 | Jun | −14.13N, −37.17S, −64.39E, −75.28W | Peru/Bolívia-238 -Chile Coast-111 |
2001 | Oct | − 18.96N, −36,58S, −64.26E, −77.97W | Northern/Southern Chile-119 |
2001 | Dec | −26.81N, −37.70S, −65.71E, −73.09W | Northern/Southern Chile-372 |
2002 | Jan-Apr | −2.07N, −41.75S, −63.63E, −82.79W | Near coast Ecuador/ South Argentina-1051 |
2003 | Apr-Jun | −18.89N, −39.30S, −63.75E, −73.07W | Near Coast Chile, S. Chile/Arg border-1273 |
2005 | May-Jun | −13.48N, −41.43S, −64.26E, −77.27W | Central Peru, Near Coast Chile-470 |
2006 | Apr-May | −25.60N, −36.21S, −67.76E, −72.58W | Chile/ Arg border, Central Chile-562 |
2006 | Jul-Aug | −27.65N, −37.40S, 67.7E, −72.5W | Chile Coast, Central Chile-556 |
2007 | May | −18N, −38.15S, −62.20E, −74.68W | North/Southern Chile-289 |
2007 | Jul-Aug | −12.33N, −16.08S, −74.8E, −78.05W | Peru coast-South/Central Chile-737 |
2010 | Feb-Apr | −32.27N, −39.45S, −70.37E, −75.38W | Coast Central Chile-1531 |
2014 | Mar-Apr | −32.27N, −39.45S, −66.46E, −75.38W | Coast Central Chile-618 |
2015 | Sep-Nov | −27.75N, −37.57S, −68.59E, −75.18W | Coast and off coast Central Chile-923 |
2017 | Apr | −19.29N, −39.35S, −65.88E, −75.73W | Near Coast Central and North Chile, off coast-202 |